Description
Gets the value of the item whose type is number.
Applies to
JSONParser objects
Syntax
objectname.GetItemNumber ( ItemHandle )
|
Argument |
Description |
|---|---|
|
objectname |
The name of the JSONParser object whose item value you want to obtain. |
|
ItemHandle |
A long whose value is the item handle of JsonNumberItem type. |
Return value
Double.
Returns the double value of the item if it succeeds; if any argument's value is null, returns null; if an error occurs, the SystemError event will be triggered.
Usage
If the item value is null, this function will throw an error, therefore, it is recommended that before executing this function, call GetItemType to check if the item value is null. See example 2 in GetItemArray.
Examples
This example gets the value of the first child item:
JsonParser lnv_JsonParser
String ls_Json
Long ll_RootObject, ll_item, ll_id
lnv_JsonParser = Create JsonParser
ls_Json = '{"id":1001, "name":"svan", "active":true}'
lnv_JsonParser.LoadString(ls_Json)
ll_RootObject = lnv_JsonParser.GetRootItem()
ll_item = lnv_JsonParser.GetChildItem(ll_RootObject, 1)
ll_id = lnv_JsonParser.GetItemNumber(ll_item)
See also
Description
Gets the value of the item whose type is number.
Applies to
JSONParser objects
Syntax
objectname.GetItemNumber ( ParentItemHandle, Key )
|
Argument |
Description |
|---|---|
|
objectname |
The name of the JSONParser object whose child item value you want to obtain. |
|
ParentItemHandle |
A long whose value is the handle of the parent item of JsonObjectItem type. |
|
Key |
A string whose value is the key of the child item of JsonNumberItem type. |
Return value
Double.
Returns the double value of the child item if it succeeds; if any argument's value is null, returns null; if an error occurs, the SystemError event will be triggered.
Usage
If the item value is null, this function will throw an error, therefore, it is recommended that before executing this function, call GetItemType to check if the item value is null. See example 2 in GetItemArray.
Examples
This example gets the value of the "id" child item:
JsonParser lnv_JsonParser
String ls_Json
Long ll_RootObject, ll_id
lnv_JsonParser = Create JsonParser
ls_Json = '{"id":1001, "name":"svan", "active":true}'
lnv_JsonParser.LoadString(ls_Json)
ll_RootObject = lnv_JsonParser.GetRootItem()
ll_id = lnv_JsonParser.GetItemNumber(ll_RootObject, "id")
See also
